I was thinking about it last night, and I think you are correct. The
one valve by itself is probably the one that needs to be flipped, though
I put them all back in the same as they came out, (I am pretty sure of
that). I guess we will fool with it a bit again today, try to just take
the cove
> Oh, one other thing, I am wondering if the cam thingie on the engine is
> actually turning and driving the pump.
If the engine is running, that thing has to be turning.
You can discern how the check valves are supposed to be
in just by thinking about how the pump has to work.
And you can test it
If yours is like mine, one of the three check valves (the one by
itself) is inverted compared to the other two. You'll notice that the
pump cover has a recess over that valve to accomodate it being "upside
down" compared to the others.
I made exactly the same mistake assembling mine. I put all t
Oh, one other thing, I am wondering if the cam thingie on the engine is
actually turning and driving the pump. I would guess it is if it is
developing a bit of vac, the cam thingie looks to be driven off the
timing chain or crankshaft somehow? Not sure what could break there
that would not be
Vac pump on the 84 300SD was not sucking, so the boy and I rebuilt it
this afternoon/evening. Fired the car up and NO VACUUM! Well, only
about 4psi on the MityVac gauge. Not sure what the problem is now.
Looked like one of the check valves in the pump was munched, we replaced
everything in
